The edge tells you what the card is.
Built, not skinned
The finish is only the first layer. Under it sits the adhesive and structural NFC core. The interaction deliberately exposes that construction so the object feels manufactured, not rendered.
Material has behaviour
Each material carries its own grain scale, roughness, reflectivity and edge tone. Changing Walnut to Copper changes the way light moves across the card, not only its colour.
surfaceNFC coresurface